Dielectrics

Radiation synthesis and luminescent properties of Y$_3$Al$_x$Ga$_{5-x}$O$_{12}$ ceramics

V. M. Lisitsyn^a, T. V. Grechkina^a, А. Т. Tulegenova<sup>b

a</sup> Tomsk Polytechnic University, Tomsk, Russia
^b Al-Farabi Kazakh National University, Almaty, Kazakhstan

Abstract: Y$_3$Al$_x$Ga$_{5-x}$O$_{12}$ : Ce ceramics with an Al/Ga ratio from 5/0 to 0/5 was synthesized for the first time by direct impact of a powerful electron beam with an energy of 1.4 MeV on a charge of stoichiometric composition. The study results of dependence of the spectral properties and the conversion efficiency the excitation energy into luminescence on the ceramic composition are presented. A difference was found between the dependences of the efficiency of transformation of the excitation energy into luminescence on the Al/Ga ratio upon excitation of cerium ions at 450 and 337 nm.

Keywords: yttrium-aluminum-gallium garnet, radiation synthesis, luminescence, spectra, transformation efficiency of excitation energy into luminescence.

Received: 27.04.2022
Revised: 15.11.2022
Accepted: 15.11.2022

DOI: 10.21883/FTT.2023.02.54294.366

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